.title{
    background: #f5f5f5;
    border-radius: 5px;
    margin-bottom: 20px;
    position: relative;
    height: 60px;
    line-height: 60px;
    box-shadow: inset 0px 15px 15px -20px #d4d4d4, inset 0px -15px 15px -20px #d4d4d4;
    .title-font{
        position: absolute;
        left: 20px;
        font-weight: bold;
        font-size: 15px;
    }
    button{
        position: absolute;
        right: 20px;
        top: 15px;
    }
}
.tree{
    padding: 20px;
    border: 1px solid #f5f5f5;
    border-radius: 2px;
    box-shadow: 15px 0 15px -20px #d4d4d4, -15px 0 15px -20px #d4d4d4;
}

.sub-buttom{
    width: 100%;
    padding: 20px;
    button{
        margin: 0 auto;
        display: block;
    }
}
